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Publication
Physical Review B - CMMP
Paper
Intrinsic and extrinsic d-wave effects in YBa2Cu3O7−δ grain boundary Josephson junctions: Implications for π circuitry
Abstract
We have investigated the properties of biepitaxial YBa2Cu3O7−δ grain boundary Josephson junctions, which appear to be characterized by low barrier transmission probabilities. Extrinsic and intrinsic d-wave effects are discussed within the framework of novel designs for π-circuitry and qubits. The absence of spontaneous magnetization and of the consequent additional noise, in a wide range of experimental conditions, seems to be encouraging for designs of “quiet” devices. © 2003 The American Physical Society.